Beginning with V2.1 iRidium supports the SIP protocol for setting up voice communication between iRidium panels, other SIP-clients, other iRidium panels.
iRidium panels work in the SIP-client mode. In order to have connection with Intercom you need to have the set up SIP server. You need to indicate the connection properties in the settings of iRidium SIP-client. iRidium provides only the client part, the server part is selected to the discretion of the integrator. The SIP driver for iRidium V2.1 can be downloaded for free from the iRidium mobile web site.